From b7fa264749ae4b8f01341e4a1392a76440a3611d Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Thu, 15 Jul 2021 00:51:50 -0400 Subject: vic: Fix dimension compuation of YUV frames Fixes out of bound memory crashes in Mario Golf --- src/video_core/command_classes/vic.cpp | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'src/video_core/command_classes/vic.cpp') diff --git a/src/video_core/command_classes/vic.cpp b/src/video_core/command_classes/vic.cpp index 0a8b82f2b..43ac20728 100644 --- a/src/video_core/command_classes/vic.cpp +++ b/src/video_core/command_classes/vic.cpp @@ -119,28 +119,27 @@ void Vic::Execute() { const std::size_t surface_width = config.surface_width_minus1 + 1; const std::size_t surface_height = config.surface_height_minus1 + 1; - const std::size_t half_width = surface_width / 2; - const std::size_t half_height = config.surface_height_minus1 / 2; + const auto frame_width = std::min(surface_width, static_cast(frame->width)); + const auto frame_height = std::min(surface_height, static_cast(frame->height)); + const std::size_t half_width = frame_width / 2; + const std::size_t half_height = frame_height / 2; const std::size_t aligned_width = (surface_width + 0xff) & ~0xff; const auto* luma_ptr = frame->data[0]; const auto* chroma_b_ptr = frame->data[1]; const auto* chroma_r_ptr = frame->data[2]; - const auto stride = frame->linesize[0]; - const auto half_stride = frame->linesize[1]; + const auto stride = static_cast(frame->linesize[0]); + const auto half_stride = static_cast(frame->linesize[1]); luma_buffer.resize(aligned_width * surface_height); - chroma_buffer.resize(aligned_width * half_height); + chroma_buffer.resize(aligned_width * surface_height / 2); // Populate luma buffer - for (std::size_t y = 0; y < surface_height - 1; ++y) { + for (std::size_t y = 0; y < frame_height; ++y) { const std::size_t src = y * stride; const std::size_t dst = y * aligned_width; - - const std::size_t size = surface_width; - - for (std::size_t offset = 0; offset < size; ++offset) { - luma_buffer[dst + offset] = luma_ptr[src + offset]; + for (std::size_t x = 0; x < frame_width; ++x) { + luma_buffer[dst + x] = luma_ptr[src + x]; } } gpu.MemoryManager().WriteBlock(output_surface_luma_address, luma_buffer.data(), -- cgit v1.2.3